本文整理汇总了Python中PyQt4.QtGui.QImageReader.read方法的典型用法代码示例。如果您正苦于以下问题：Python QImageReader.read方法的具体用法？Python QImageReader.read怎么用？Python QImageReader.read使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类PyQt4.QtGui.QImageReader的用法示例。
在下文中一共展示了QImageReader.read方法的7个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: get_archive_wallpapers
# 需要导入模块: from PyQt4.QtGui import QImageReader [as 别名]
# 或者: from PyQt4.QtGui.QImageReader import read [as 别名]
def get_archive_wallpapers(self):
"""
Generator returning the date, path and copyright info (via db lookup) of each file found in the
archive location.
:rtype: QDate, unicode, unicode
"""
image_reader = QImageReader()
regex_date_split = re.compile(r'(\d{4})(\d{2})(\d{2})')
copyright_info = self.copyright_db.get_all_info()
archive_folder = self.settings.archive_location
for filename in reversed([x for x in os.listdir(archive_folder) if re_archive_file.match(x)]):
year, month, day = map(int, regex_date_split.findall(filename)[0])
wallpaper_date = QDate(year, month, day)
wallpaper_copyright = copyright_info.get('{0:04d}-{1:02d}-{2:02d}'.format(year, month, day), '')
wallpaper_filename = os.path.join(unicode(archive_folder), filename)
image_reader.setFileName(wallpaper_filename)
image_size = image_reader.size()
image_size.scale(QSize(200, 125), Qt.IgnoreAspectRatio)
image_reader.setScaledSize(image_size)
thumbnail_image = image_reader.read()
if thumbnail_image.isNull():
continue
self.lw_wallpaper_history.add_item(thumbnail_image, wallpaper_date, wallpaper_copyright,
archive_path=wallpaper_filename)
self.app.processEvents()
self.lw_wallpaper_history.sortItems(Qt.AscendingOrder)示例2: returnAvatar
# 需要导入模块: from PyQt4.QtGui import QImageReader [as 别名]
# 或者: from PyQt4.QtGui.QImageReader import read [as 别名]
def returnAvatar(self, reply):
imageReader = QImageReader(reply)
image = imageReader.read()
lbl = self.ui.avatarLB
if reply.error() == QNetworkReply.NoError:
pixMap = QPixmap.fromImage(image).scaled(lbl.size(), Qt.KeepAspectRatio)
lbl.setPixmap(pixMap)
lbl.show()
else:
# TODO Put default image if not load from URL.
pass示例3: update
# 需要导入模块: from PyQt4.QtGui import QImageReader [as 别名]
# 或者: from PyQt4.QtGui.QImageReader import read [as 别名]
def update(self):
""" Fonction de mise à jour de la préview :
* Si la taille de l'image est plus petite que la taille souhaité, on n'agrandi pas l'image, on prend la plus petite des deux
* Le cache contient en index les images+size"""
miniImg = QImage()
image = QImageReader(self.imageName)
self.origineSize = image.size()
image.setQuality(self.quality)
if not self.magnify :
if ( ( self.size.width() + self.size.height() ) > (image.size().width() + image.size().height() ) ) :
self.size = image.size()
if self.keepRatio :
image.setScaledSize(QSize(self.size.width(), image.size().height() * self.size.width() / image.size().width() ) )
else :
image.setScaledSize(self.size)
if not QPixmapCache.find(self.imageName + str(self.size), self.preview) or not self.cache:
image.read(miniImg)
self.preview = self.preview.fromImage(miniImg)
if self.cache :
QPixmapCache.insert(self.imageName + str(self.size), self.preview)示例4: returnAvatar
# 需要导入模块: from PyQt4.QtGui import QImageReader [as 别名]
# 或者: from PyQt4.QtGui.QImageReader import read [as 别名]
def returnAvatar(self, reply):
imageReader = QImageReader(reply)
self.avatarImage = imageReader.read()
lbl = self.avatarLB
if reply.error() == QNetworkReply.NoError:
pixMap = QPixmap.fromImage(self.avatarImage).scaled(lbl.size(), Qt.KeepAspectRatio)
lbl.setPixmap(pixMap)
lbl.show()
else:
# TODO Put default image if not load from URL.
pass
self.nameLB.setText("<html><head/><body><p><span style=\" text-decoration: underline; color:#00557f;\">" + self.currentUser + "</span></p></body></html>")示例5: on_reply_ready
# 需要导入模块: from PyQt4.QtGui import QImageReader [as 别名]
# 或者: from PyQt4.QtGui.QImageReader import read [as 别名]
def on_reply_ready(reply, future):
nonlocal n_redir
# schedule deferred delete to ensure the reply is closed
# otherwise we will leak file/socket descriptors
reply.deleteLater()
future._reply = None
if reply.error() == QNetworkReply.OperationCanceledError:
# The network request was cancelled
reply.close()
future.cancel()
return
if reply.error() != QNetworkReply.NoError:
# XXX Maybe convert the error into standard
# http and urllib exceptions.
future.set_exception(Exception(reply.errorString()))
reply.close()
return
# Handle a possible redirection
location = reply.attribute(
QNetworkRequest.RedirectionTargetAttribute)
if location is not None and n_redir < 1:
n_redir += 1
location = reply.url().resolved(location)
# Retry the original request with a new url.
request = QNetworkRequest(reply.request())
request.setUrl(location)
newreply = self._netmanager.get(request)
future._reply = newreply
newreply.finished.connect(
partial(on_reply_ready, newreply, future))
reply.close()
return
reader = QImageReader(reply)
image = reader.read()
reply.close()
if image.isNull():
future.set_exception(Exception(reader.errorString()))
else:
future.set_result(image)示例6: on_reply_ready
# 需要导入模块: from PyQt4.QtGui import QImageReader [as 别名]
# 或者: from PyQt4.QtGui.QImageReader import read [as 别名]
def on_reply_ready(reply, future):
nonlocal n_redir
if reply.error() == QNetworkReply.OperationCanceledError:
# The network request itself was canceled
future.cancel()
return
if reply.error() != QNetworkReply.NoError:
# XXX Maybe convert the error into standard
# http and urllib exceptions.
future.set_exception(Exception(reply.errorString()))
return
# Handle a possible redirection
location = reply.attribute(
QNetworkRequest.RedirectionTargetAttribute)
if location is not None and n_redir < 1:
n_redir += 1
print(location)
location = reply.url().resolved(location)
# Retry the original request with a new url.
request = QNetworkRequest(reply.request())
request.setUrl(location)
newreply = self._netmanager.get(request)
future._reply = newreply
newreply.finished.connect(
partial(on_reply_ready, newreply, future))
return
reader = QImageReader(reply)
image = reader.read()
if image.isNull():
future.set_exception(Exception(reader.errorString()))
else:
future.set_result(image)示例7: setupScene
# 需要导入模块: from PyQt4.QtGui import QImageReader [as 别名]
# 或者: from PyQt4.QtGui.QImageReader import read [as 别名]
def setupScene(self):
self.error()
if self.data:
attr = self.stringAttrs[self.imageAttr]
titleAttr = self.allAttrs[self.titleAttr]
instances = [inst for inst in self.data
if numpy.isfinite(inst[attr])]
assert self.thumbnailView.count() == 0
size = QSizeF(self.imageSize, self.imageSize)
for i, inst in enumerate(instances):
url = self.urlFromValue(inst[attr])
title = str(inst[titleAttr])
thumbnail = GraphicsThumbnailWidget(QPixmap(), title=title)
thumbnail.setThumbnailSize(size)
thumbnail.setToolTip(url.toString())
thumbnail.instance = inst
self.thumbnailView.addThumbnail(thumbnail)
if url.isValid() and url.isLocalFile():
reader = QImageReader(url.toLocalFile())
image = reader.read()
if image.isNull():
error = reader.errorString()
thumbnail.setToolTip(
thumbnail.toolTip() + "\n" + error)
self._errcount += 1
else:
pixmap = QPixmap.fromImage(image)
thumbnail.setPixmap(pixmap)
self._successcount += 1
future = Future()
future.set_result(image)
future._reply = None
elif url.isValid():
future = self.loader.get(url)
@future.add_done_callback
def set_pixmap(future, thumb=thumbnail):
if future.cancelled():
return
assert future.done()
if future.exception():
# Should be some generic error image.
pixmap = QPixmap()
thumb.setToolTip(thumb.toolTip() + "\n" +
str(future.exception()))
else:
pixmap = QPixmap.fromImage(future.result())
thumb.setPixmap(pixmap)
self._noteCompleted(future)
else:
future = None
self.items.append(_ImageItem(i, thumbnail, url, future))
if any(it.future is not None and not it.future.done()
for it in self.items):
self.info.setText("Retrieving...\n")
else:
self._updateStatus()